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Ice guides and mods

Becker Sat Nav

Every you need to know about fitting a Becker sat nav to your 450 or Roadster

Modification Details

Smart Navigation & Sound

Throughout the life of the Fortwo and Roadster, a very expensive Becker satellite navigation was offered. 
The price made it quite a rare piece of kit so not a great deal of info was known about it.

This is the £1000 Becker BE 6040 Navigation & Sound (AKA Becker 4716).

It was a refaced version of the APS30 unit used in Mercedes cars around the same time.

All of the connections on the rear are the same, there are a few extras compared to normal stereos.

Starting on the left, you have the radio aerial input which is the same as all the other smart stereos.
To the left of that is the TMC antenna input that isn't used in this version.
To the left of that (behind the green plug) is an optical input for Becker CD changers.
On the far right you have the standard ISO inputs which are detailed below.

Pin Number Connection
A1 GALA Speed Impulse
A2 K-line
A3 Mute
A4 12v Permanent
A5 12v Remote Out
A6 Lighting Input
A7 12v Switched
A8 Earth
B1 Tweeter Right +
B2 Tweeter Right -
B3 Speaker Right +
B4 Speaker Right -
B5 Speaker Left +
B6 Speaker Left -
B7 Tweeter Left +
B8 Tweeter Left -
C1 CAN High
C2 CAN Low
C3 Reverse Signal
C4 Wake Up
C5 12v Permanent Output
C6 Earth
D1 GPS Antenna
Fitting The Navigation & Sound Unit


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